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EP Welded Tube for Bulk Gas Delivery

Ultra High-Purity (UHP) Tube Products for

Semiconductors and Microelectronics

CREST UHP Welded Tube Product

    • selected the finest pre-materials suitable for ultra high-purity applications
    • stainless steel welded tubing specifications of ASTM A269/A270
    • stainless steel welded tubing specifications of JIS G3459
    • servicing semiconductors and microelectronics
    • servicing ultra high purity gas delivery system
    • the corrosion-resistant solution to special gases used within wafer fab equipment gas systems
Dimension
OD [inch/mm] WT [inch/mm]
1/4″(6.35) 0.035″(0.89)
3/8″(9.53) 0.035″(0.89)
1/2″(12.7) 0.049″(1.24)
3/4″(19.05) 0.065″(1.65)
Finish Code
Product Code
Specifications
ASTM/JIS
Choice of
Pre-Materials
Surface Roughness
(Max)
EP
UHP-218
A269/A270
JIS G3459
316L
SUS316L
ID < 10 RA < 0.25 μm
OD < 32 RA < 0.8 μm
BA
UHP-212
A269/A270
JIS G3459
316L
SUS316L
ID < 15 RA < 0.38 μm
OD < 32 RA < 0.8 μm
AP
UHP-210
A269/A270
JIS G3459
304L
316L
ID Bead Removed Bright Annealed
OD < 32 RA < 0.8 μm